A three-component homogeneous photocatalytic system for hydrogen evolution was evaluated and optimized in a foam-based photoreactor developed within the SoFiA project. The setup consisted of a molecular photosensitizer (Ru(bpy)_3^(2+)), a cobalt-based hydrogen evolution catalyst (cobaloxime), and sodium ascorbate as sacrificial electron donor, later supplemented with tris(2-carboxyethyl)phosphine (TCEP) acting as electron-relay. The reactor operation was re-established through the development of a fully reproducible methodology including surfactant optimization (Triton X-100 concentration up to 20×CMC), buffer selection, and systematic control of light exposure and gas removal. Real-time hydrogen detection was carried out using a needle-type Clark electrode, and quantitative data were processed through OriginLab.